Polar Form Calculator

By: Calculator Grid

Polar Form Calculator

Convert a complex number from rectangular form a + bi to magnitude-and-phase form using the quadrant-aware argument.

Magnitude: 5.000000 Phase: 0.927295 rad Input: 3.000000 + 4.000000i

Workbook ready for the demonstration values.

Rectangular form a + bi

Required. Use a decimal point; commas are rejected. Scientific notation such as 1e3 is accepted.

Required. Enter the coefficient of i, including its sign.

Phase unit

The underlying argument is computed in radians and converted only for display and export.

Polar form r × exp(iφ)

Polar form

5.000000 × exp(i0.927295)

Magnitude (r)

5.000000

Phase (φ)

0.927295 rad

Magnitude 5.000000. Phase 0.927295 radians.

Calculation details

Quantity Formula Value
Real part a 3.000000
Imaginary part b 4.000000
Squared real part 9.000000
Squared imaginary part 16.000000
Sum of squares a² + b² 25.000000
Magnitude √(a² + b²) 5.000000
Phase atan2(b, a) 0.927295 rad

The phase is the principal argument in the interval ( – π, π